Pie chart and bar chart / johnfischbeck

Public

Edited

May 25, 2023

{

const data = todayData

const svg = d3.select(DOM.svg(width, height))

const radius = (height - margin.top - margin.bottom) / 2

const w = width - margin.left - margin.right

const h = height - margin.top - margin.bottom

let color = d3.scaleOrdinal(colors)

let pie = d3.pie()

.sort((a, b) => b.count - a.count)

.value(d => d.count)

.padAngle(0.01)

let path = d3.arc()

.outerRadius(radius)

.innerRadius(70)

let label = d3.arc()

.outerRadius(radius - 30)

.innerRadius(radius - 30)

let total = d3.sum(data, d => d.count)

function percent(val) {

return `${(100 * val / total).toFixed(2)}%`

}

let g = svg.append('g').attr('transform', `translate(${margin.left}, ${margin.top})`)

// 绘制饼图

let pieGroup = g.append('g')

var arc = pieGroup.selectAll('.arc')

.data(pie(data))

.enter().append('g')

.attr('class', 'arc')

.attr('transform', `translate(${w/2}, ${radius + 10})`)

arc.append('path')

.attr('d', path)

.attr('fill', d => color(d.data.label))

// 绘制中心文字

// 绘制图例

return svg.node();

}

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